Torch.



Patented Aug.l 22, |899.

J. GRAHAM.

T 0 B C H (Application med Nv..22, 1895i (No Modal.)

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UNITED STATES `Parleur OFFICE.

JOHN GRAHAM, OF BOSTON, MASSACHUSETTS.

SPECIFICATIQN forming part of Letters Patent No. 631,425, dated August22, 1899.

Application iiled November 22, 1898. I Serial No. 697,178. (No model.)

To all whom, t may concern.-

Be it known that I, JOHN GRAHAM, of Boston, in the county of Suffolk andState of Massachusetts, have invented a new and useful Improvement inTorches, of which the following, taken in connection with theaccompany.- ing drawings, is a specification.

My invention relates to a device more or less portable and adapted to beused as a torch or for heating purposes; and it consists of an oil-tankot peculiar construction mounted upon an open-work cup containingoilsaturated asbestos or some similar material. A perforated tubecentrally located passes through both the cup and the tank and isarranged to supply air for combustion and also to admit oil vfrom theoil-tank to mingle with the intlowing air and add to the iiame, and thusto greatly enhance the heat production.

I have illustrated my invention in the accompanying drawings, in which-Figure l shows my invention in elevation. Fig. 2 shows the same invertical section.

In the drawings, A represents the oil-tank, which may be made of anydesired size and form. The upper part of this tank has small holes D'D', through which jets of gas may escape and become ignited. Oil orother iniammable liquid is introduced to the tank by the supply-pipe B,the iiow being regulated by the stop-cock-B'. The lower part of the tankA is surrounded by a packing of asbestos or some similar absorbingmaterial, which is held in the cup R. This cup R-is made with large andnumerous openings, as shown in Fig. 1, and is held to the oil-tank A bymeans of the tube E, which is provided with a screw-thread at K and acollet at L, the screw-thread engaging with the lower part of the tank Aand the collet abutting agains the bottom of the cup R.

Oil is supplied to the asbestos in the cup R by the pipe M, which entersthe cup and passes around the lower part of the tank, as shown at M',Fig. 2. This pipe has numerous perforations N N, which allow the oil topass through and to saturate thepacking in the cup R. The amount of oiladmitted to the pipe M' is regulated by the cock M2.

The tube E passes through the center of the device and is provided withsets of airholes E E at its lower end, and below the the tank A, and asthis oil becomes heatedit Ycup it also has holes K K, which admit vaporor gas from the contents of the packing of the cup R to pass into theinterior of the tube 55 and become ignited. A series of inclinedopenings F is made in the tube, through which oil in the tank A may flowwhen the oil has reached the required level.

The operation of my device is as follows: 6o The tank A is filled up tothe level of the holes F F and asuflicient quantityis admitted to theasbestos in the cup R to saturate it. The oil in the asbestos isignitedand a [iame immediately envelops the entire device. 65 Soon thevapor passing into the tube E through the openings K K becomes ignitedand assists the exterior flame in heating the oil in generates vaporwhich, passing through the 7o perforations D' D', also becomes ignitedand acting with the flame from the asbestos creates a large body ofintensely-heated iiame. When the ignition has reached a certain point,an excess of oil may be turned into the 75 tank A, so as to cause theoil to flow through the inclined opening FF and into the tube. This oilwill be converted into an inflammable vapor and will at once create afierce dame that will burn with great heat and in` 8o tensity from thetop of the tube. The supply of oil may now be cut off from the asbestosor other packing in the cup R and the amount iiowing into the tankregulated to suit the requirements of the user.

Under certain .conditions the device may be used without the aid of theoil-pipe M M'. For instance, oil may be allowed to flow into the tank tosuch a degree as to overliow and run out of the perforations D' D' anddown through the openings C' C into the packing in the cup R andsaturate it.

' I claim- 1. In a vapor-burning device, an oil-tank perforated asdescribed and partly located in the upper part of a cup containingabsorbent material; the said cup and absorbent material; a central tubepassing through the said cup and tank and perforated as described; andmeans for supplying oil to said cup and roo tank; substantially as andfor the purpose set forth.

2. In a vapor-burning device, an oil-tank placed immediately above areceptacle con- 3. In a Vapor-burning device, an oil-tank i perforatedas described; a perforated cup containing absorbent material partlyenveloping i said oil-tank; a perforated oil-supply tube curved aroundsaid oil-tank and in the absorbent material; and means for supplying thedevice with oil; substantially as and for the purpose set forth.

In testimony whereof I have signed my name to this specifica-tion, inthe presence of two subscribing witnesses, on this 11th day I ofNovember, A. D. 1898.

i JOI-'IN GRAHAM. \Vitnesses:

FRANK G. PARKER, 'FRANK G. I-IATTIE.

